Wiki » Historie » Version 10
Maximilian Seesslen, 10.09.2024 16:23
| 1 | 1 | Maximilian Seesslen | h1. Wiki |
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| 2 | |||
| 3 | There are some issues that can only be tested via power resets. |
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| 4 | |||
| 5 | * SPI has an issue that it needs retries |
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| 6 | * Looks like configuration I2C EEPROM gets reset to defaults |
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| 7 | 3 | Maximilian Seesslen | * RTC-offline-test (Wie lange haelt die RTC Batterie) |
| 8 | 1 | Maximilian Seesslen | |
| 9 | 3 | Maximilian Seesslen | The device has an CANBus in and an CANBus out. The testsoftware is on the DUT. The DUT sends the command to toggle power line to Awaria via CAN. |
| 10 | The switch-off time has to be an parameter. The RTC-Tests will be complex, the Awaria software shall be simple and generic. |
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| 11 | 2 | Maximilian Seesslen | |
| 12 | An data multiplexer can be used along with a mosfet for power line. |
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| 13 | |||
| 14 | h1. Parts |
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| 15 | |||
| 16 | * MCU: The smallest thing |
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| 17 | 1 | Maximilian Seesslen | * Multiplexer: |
| 18 | 3 | Maximilian Seesslen | ** MC14551BDG bis zu 1K RON: 1050 |
| 19 | ** TS5A23166DCUR cool, 2 channels, up to 100mA, 1,8-6,5V |
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| 20 | 6 | Maximilian Seesslen | ** Habe: |
| 21 | 7 | Maximilian Seesslen | *** DG408LEDQ-T1-GE3; .#273; 1:8 |
| 22 | 8 | Maximilian Seesslen | *** DG409LEDQ-T1-GE3; .#321; 1:8 |
| 23 | *** ADG736; .#315; 2x1:2 |
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| 24 | 9 | Maximilian Seesslen | *** *RS2102XN ADG836YRMZ* Das ist er |
| 25 | 6 | Maximilian Seesslen | |
| 26 | 5 | Maximilian Seesslen | * Big EEPROM, device can store test info from DUT |
| 27 | 4 | Maximilian Seesslen | |
| 28 | Spannungs/Strom zu umstaendlich. |
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| 29 | 10 | Maximilian Seesslen | |
| 30 | h1. RTC-Tests |
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| 31 | |||
| 32 | Can have a region in SPI-Flash. |
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| 33 | Init Region. |
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| 34 | Start. |
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| 35 | * Cut 2 Seconds. Time OK? |
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| 36 | * Cut 4 Seconds. Time OK? |
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| 37 | * Cut 8 Seconds. Time OK? |